Community Gardens Participation in Promoting Sustainable Lifestyles in Urban Settings: the JArDinS Study

NCT03694782 | Completed

• 1 other identifier: JArDinS
• Study Type: observational
• Target: 150
• Locations: 1 country
• Sites: 1

Brief Summary

The JArDinS study is a quasi-experimental research that aimed at assessing the impact of community garden participation (a natural experiment) in the adoption of more sustainable lifestyles.

Conditions

Sustainable Lifestyles

Keywords

diet; food prices; environment; physical activity; nature; well being; natural experiment; loneliness; accelerometry

Outcome Measures

Primary Outcomes (9)

• Change in healthiness of household food supply

  The nutritional quality of household food supply was estimated using two indicators of nutritional quality : the mean adequacy ratio (MAR) and the mean excess ratio (MER)

  at baseline and exactly 12 month later

• Change in physical activity energy

  Physical activity energy expenditure were estimated directly from raw triaxial accelerometry data using a model which combines an automatic activity-recognition algorithm with an activity-specific count-based model

  at baseline and exactly 12 month later

• Change in mental well-being

  Assessed by the Warwick-Edinburgh Mental Wellbeing Scale. WEMWBS is a 14-item scale rated on a 5-point Likert-type, in which all items are worded positively and address aspects of positive mental health. Total score range from 14-70, with higher scores indicating a higher level of mental well-being.

  at baseline and exactly 12 month later

• Change in social isolation

  Assessed by the UCLA Loneliness Scale. UCLA-3 is a 20-item scale (11 positive and 9 negative) rated on a 4-point Likert-type. Total score range from 20-70, with higher scores greater feelings of loneliness.

  at baseline and exactly 12 month later

• Change in environmental impact of household's food supply

  Greenhouse gas emissions (in g CO2eq), atmospheric acidification (g SO2eq) and marine eutrophication (in g Neq) related to household's food supply were computed using estimates from the French 'SUStable' table.

  at baseline and exactly 12 month later

• Change in environmental impact of household's food trip (in g CO2eq)

  For each food trip, the distance traveled specifically for food purchase will be multiplied by energy source consumption of the transportation used, and by the corresponding GHGE factor of source consumption. GHGE related to food trip will be calculated as the sum of all food trips during the period of data collection.

  at baseline and exactly 12 month later

• Change in sensibility to food waste

  Assessed by the Sensibility to food waste scale, a 8-item scale rated on a 7-point Likert-type, that measure in which extent participants attach importance to waste and are emotionally affected by it. Total score range from 7-56, a higher total scores denote greater sensibility to food waste.

  at baseline and exactly 12 month later

• Change in connection with nature

  Affective, cognitive, and experiential aspects of individuals' connection to nature was assessed by the Nature Relatedness Scale (NRS). NRS is a 21-item scale rated on a 5-point Likert-type. Total score range from 5-105, a higher total scores denote greater nature connectedness.

  at baseline and exactly 12 month later

• Change in household food supply expenditure

  Monthly household food expenditure and the contribution of each food group and subgroup to total food expenditure were estimated using food expenses data collected in the food supply diary.

  at baseline and exactly 12 month later

Secondary Outcomes (5)

• Age (in year) of each member of the household

  at baseline

• Gardening experience prior to the project

  at baseline

• Gender of each member of the household

  at baseline

• Household income

  at baseline

• Education level of each adult of the household

  at baseline

Study Arms (2)

Experimental group

Gardeners starting gardening in a community garden in Montpellier (France)

Behavioral: Food diary supply; Behavioral: Actigraph; Behavioral: Questionnaire

Control Group

Volunteers living in the same neighborhoods but with no experience in community gardening.

Behavioral: Food diary supply; Behavioral: Actigraph; Behavioral: Questionnaire

Interventions

Food diary supply BEHAVIORAL

Each participant was issued with a food supply diary to record details of their household food supply and related trips over 1-mo period. Household food supply included food purchases, food gift/donation, and potential crops from the garden. Away-from-home food consumption was not recorded. For each food purchase, participants provided details of date, place of purchase, foods purchased (name, quantity and expense incurred), and trip made (origin/where the trip started, destination/where the trip ended, and mode of transportation). When till receipts were available in grocery stores or supermarkets, participants were asked to collect them in an envelope placed at the end of the food supply diary. To facilitate data entry, all family members were encouraged to help filling out the diary.

Control Group; Experimental group

Actigraph BEHAVIORAL

Participants were instructed to wear a triaxial accelerometer (wGT3X-BT or wActiSleep-BT, Actigraph, Pensacola, FL, USA) fitted with an elastic strap on right side of the hip for 9 consecutive days, except for bathing and performing activities in the water. The Actigraph was accompanied by an activity logbook in which participants were required to daily record time when awake and sleeping, and, if any, time and duration of workout or device removal

Control Group; Experimental group

Questionnaire BEHAVIORAL

Participants received by email a link to complete an online questionnaire about mental and social health, sensibility to food waste, and connection with nature

Control Group; Experimental group

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

residents of Montpellier (France)

You may qualify if:

• starting gardening in a community garden (for experimental group)
• no experience in community gardening (for control group)
• willingness to be involved in the study through one year
• age above 18 years
• ability to read in French and live in the city of Montpellier.

You may not qualify if:

• past experience of at least one household member in community gardening
• never doing grocery shopping for home

Sponsors & Collaborators

• Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement: lead

Study Sites (1)

INRA

Montpellier, 34070, France

Location

Related Publications (2)

• Tharrey M, Sachs A, Perignon M, Simon C, Mejean C, Litt J, Darmon N. Improving lifestyles sustainability through community gardening: results and lessons learnt from the JArDinS quasi-experimental study. BMC Public Health. 2020 Nov 26;20(1):1798. doi: 10.1186/s12889-020-09836-6.

  PMID: 33243204 DERIVED

• Tharrey M, Perignon M, Scheromm P, Mejean C, Darmon N. Does participating in community gardens promote sustainable lifestyles in urban settings? Design and protocol of the JArDinS study. BMC Public Health. 2019 May 17;19(1):589. doi: 10.1186/s12889-019-6815-0.

  PMID: 31101095 DERIVED

MeSH Terms

Conditions

Motor Activity

Interventions

Surveys and Questionnaires

Condition Hierarchy (Ancestors)

Behavior

Intervention Hierarchy (Ancestors)

Data Collection; Epidemiologic Methods; Investigative Techniques; Health Care Evaluation Mechanisms; Quality of Health Care; Health Care Quality, Access, and Evaluation; Public Health; Environment and Public Health

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal investigator

Study Record Dates

• First Submitted: September 25, 2018
• First Posted: October 3, 2018
• Study Start: March 1, 2018
• Primary Completion: February 10, 2020
• Study Completion: February 10, 2020
• Last Updated: February 11, 2020

Record last verified: 2020-02

Data Sharing

• IPD Sharing: Will not share

Locations

FR (1)